Free tool · simulated kinetics
Half-life decay simulator
Pick a peptide preset or enter a custom half-life and dosing schedule. The simulator plots first-order exponential decay so you can see how much molecule remains at any time point.
Inputs
Peak0.969 mg
Trough (late)0.444 mg
Total injections5
Plasma level over time
This is a simplified single-compartment exponential decay model. Real PK includes absorption phase, distribution, and clearance variability. Use this as a sketch — not as a substitute for measured pharmacokinetic data when designing research protocols.